TABLE 2.
Relationship between HI and EIA titers for JCV and BKV
| Virus | HI-EIA titer category | EIA titer | No. of samples with EIA titer | HI titer | No. of samples with HI titer | % EIA test results in category (no. positive/total no.) |
|---|---|---|---|---|---|---|
| JCV | Low | ≤2,560 | 35 | <40 | 38 | 92.1 (35/37) |
| JCV | Moderately low | ≥2,560 | 11 | 40 | 13 | 84.6 (11/13) |
| JCV | Moderately high | ≥10,240 | 23 | 80 to 320 | 26 | 88.5 (23/26) |
| JCV | High | ≥40,960 | 36 | ≥640 | 37 | 97.3 (36/37) |
| BKV | Low | ≤2,560 | 64 | <40 | 67 | 95.5 (64/67) |
| BKV | Moderately low | ≥2,560 | 15 | 40 | 21 | 71.4 (15/21) |
| BKV | Moderately high | ≥10,240 | 21 | 80 to 320 | 23 | 91.3 (21/23) |
| BKV | High | ≥40,960 | 3 | ≥640 | 3 | 100 (3/3) |